Magnesium burns with a ____________ flame and produces ___________.

Magnesium is a highly reactive metal. It burns in the presence of oxygen with a dazzling white flame to produce magnesium oxide.

The chemical reaction is as follows-

$2{\mathrm{Mg}}_{\left(s\right)} + {\mathrm{O}}_{2\left(g\right)} \to 2{\mathrm{MgO}}_{\left(s\right)}$